"The Walking Dead" drew an 8.2 rating in adults 18-49, while the Olympics drew a 7 rating in the demographci. AMC says 15.8 million viewers tuned into "The Walking Dead's" Season 4b premiere, with 10.4 million adults in the 18-49 demo. With time-shifted playback counted in, episode 9, "After," will likely bring in more than 20 million viewers.

The current series ratings high, which was from the Season 4 premiere back in October, is 16.1 million viewers, with 10.4 million being in the 18-49 demo.

Meanwhile, "Talking Dead" also had a big night. The Chris Hardwick-hosted talk show brought in a series high of 5.9 million viewers, with 3.9 million of them being adults age 18-49.